in order to push for the wide-area processing of tsunami debris contaminated with radioactive fallout from the Fukushima I Nuke Plant accident in Miyagi and Iwate Prefectures which involves shipping the debris as far away as the island of Kyushu, burn it, and bury or recycle the ashes and slags.
Take a look at this clean-looking map created by the Ministry of the Environment in its effort to persuade the municipalities to accept the debris, burn it and bury it, vis a vis the map created by the Ministry of Education and Science from the aerial survey of the air radiation levels. The Ministry of the Environment says it created the map based on the data from the Ministry of Education and Science:
Notice the difference, other than the slightly different color scheme?
The difference is the legends. In the map created by the Ministry of the Environment, everywhere with less than 0.23 microsievert/hour air radiation is painted white. In the Ministry of Education's map, the lowest is less than 0.1 microsievert/hour air radiation, which is painted deep blue.
Whereas the Ministry of Education map further differentiates the areas with between 0.1 and 0.2 microsievert/hour air radiation, in the Ministry of Environment map these areas are still "white".
The Ministry of the Environment puts up this map in its newly created website to aid in persuading the populace into accepting the disaster debris. The map is also in the brochure for the masses, as if the air radiation levels are the same as the density of radioactive materials in soil, water, or the disaster debris.
In the Ministry of the Environment map, there are hardly any areas of contamination in Miyagi, Chiba, Ibaraki. Tokyo, Saitama, Kanagawa are "white". "Oh, the contamination is only in Fukushima Prefecture. Why are we making fuss about the debris being radioactive elsewhere?"
The slightly elevated air radiation level near Onagawa-machi, Miyagi Prefecture whose debris Tokyo has been burning is shown in the Ministry of Education's map but not at all in the Ministry of the Environment map. For the air radiation levels along the coast of northern Miyagi and southern Iwate (near Rikuzen Takata City for example), all you get to see in the Ministry of the Environment map is that they are less than 0.23 microsievert/hour.
(Good job, Goshi Hosono. I'm sure you will be the next prime minister of Japan...)